1 files changed, 107 insertions, 0 deletions
diff --git a/bzrlib/version.py b/bzrlib/version.py
new file mode 100644
index 0000000..6090069
--- /dev/null
+++ b/bzrlib/version.py
@@ -0,0 +1,107 @@
+# Copyright (C) 2006-2010 Canonical Ltd
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+"""Report on version of bzrlib"""
+
+from __future__ import absolute_import
+
+import os
+import sys
+
+import bzrlib
+from bzrlib import (
+    config,
+    controldir,
+    errors,
+    osutils,
+    trace,
+    )
+
+
+def show_version(show_config=True, show_copyright=True, to_file=None):
+    import platform
+
+    if to_file is None:
+        to_file = sys.stdout
+    to_file.write("Bazaar (bzr) %s\n" % bzrlib.__version__)
+    # is bzrlib itself in a branch?
+    src_tree = _get_bzr_source_tree()
+    if src_tree:
+        src_revision_id = src_tree.last_revision()
+        revno = src_tree.branch.revision_id_to_revno(src_revision_id)
+        to_file.write("  from bzr checkout %s\n" % (src_tree.basedir,))
+        to_file.write("    revision: %s\n" % (revno,))
+        to_file.write("    revid: %s\n" % (src_revision_id,))
+        to_file.write("    branch nick: %s\n" % (src_tree.branch.nick,))
+
+    to_file.write("  Python interpreter: ")
+    # show path to python interpreter
+    # (bzr.exe use python interpreter from pythonXY.dll
+    # but sys.executable point to bzr.exe itself)
+    # however, sys.frozen exists if running from bzr.exe
+    # see http://www.py2exe.org/index.cgi/Py2exeEnvironment
+    if getattr(sys, 'frozen', None) is None: # if not bzr.exe
+        to_file.write(sys.executable + ' ')
+    else:
+        # pythonXY.dll
+        basedir = os.path.dirname(sys.executable)
+        python_dll = "python%d%d.dll" % sys.version_info[:2]
+        to_file.write(os.path.join(basedir, python_dll) + ' ')
+    # and now version of python interpreter
+    to_file.write(bzrlib._format_version_tuple(sys.version_info))
+    to_file.write('\n')
+
+    to_file.write("  Python standard library:" + ' ')
+    to_file.write(os.path.dirname(os.__file__) + '\n')
+    to_file.write("  Platform: %s\n" % platform.platform(aliased=1))
+    to_file.write("  bzrlib: ")
+    if len(bzrlib.__path__) > 1:
+        # print repr, which is a good enough way of making it clear it's
+        # more than one element (eg ['/foo/bar', '/foo/bzr'])
+        to_file.write(repr(bzrlib.__path__) + '\n')
+    else:
+        to_file.write(bzrlib.__path__[0] + '\n')
+    if show_config:
+        config_dir = osutils.normpath(config.config_dir())  # use native slashes
+        if not isinstance(config_dir, unicode):
+            config_dir = config_dir.decode(osutils.get_user_encoding())
+        to_file.write("  Bazaar configuration: %s\n" % (config_dir,))
+        to_file.write("  Bazaar log file: ")
+        to_file.write(trace._bzr_log_filename + '\n')
+    if show_copyright:
+        to_file.write('\n')
+        to_file.write(bzrlib.__copyright__ + '\n')
+        to_file.write("http://bazaar.canonical.com/\n")
+        to_file.write('\n')
+        to_file.write("bzr comes with ABSOLUTELY NO WARRANTY.  bzr is free software, and\n")
+        to_file.write("you may use, modify and redistribute it under the terms of the GNU\n")
+        to_file.write("General Public License version 2 or later.\n")
+        to_file.write("\nBazaar is part of the GNU Project to produce a free operating "
+                "system.\n")
+    to_file.write('\n')
+
+
+def _get_bzr_source_tree():
+    """Return the WorkingTree for bzr source, if any.
+
+    If bzr is not being run from its working tree, returns None.
+    """
+    try:
+        control = controldir.ControlDir.open_containing(__file__)[0]
+        return control.open_workingtree(recommend_upgrade=False)
+    except (errors.NotBranchError, errors.UnknownFormatError,
+            errors.NoWorkingTree):
+        return None